Note You must use a 3 to 15 dB fiber attenuator (5 dB recommended) when working with the OC192 IR/STM64 SH 1550 card in a loopback. Do not use fiber loopbacks with the OC192 IR/STM64 SH 1550 card. Using fiber loopbacks can cause irreparable damage to the OC192 IR/STM64 SH 1550 card.

In deployments without a DCU: +/- 1200 ps/nm, with OSNR of 23 dB (0.5 nm RBW)

–Loopback modes: Terminal and facility

Note You must use a 20-dB fiber attenuator (15 to 25 dB) when working with the OC192 LR/STM64 LH 15xx.xx card in a loopback. Do not use fiber loopbacks with the OC192 LR/STM64 LH 15xx.xx card. Using fiber loopbacks causes irreparable damage to this card.

A.6.14 15454_MRC-12 Card Specifications

The 15454_MRC-12 card has the following specifications:

•Line

–Bit rate: up to STM-16 (2488.320 Mbps), depending on SFP

Note Each optical interface on the card can be configured as STM-1, STM-4, or STM-16, depending on the available backplane bandwidth and existing provisioned lines. In general, the card supports all different rates on the line side as long as the accumulated bandwidth does not exceed the total backplane allowed bandwidth.

A.6.15 MRC-2.5G-12 Card Specifications

The MRC-2.5G-12 card has the following specifications:

•Line

–Bit rate: up to STM-16 (2488.320 Mbps), depending on SFP

Note Each optical interface on the card can be configured as STM-1, STM-4, or STM-16, depending on the available backplane bandwidth and existing provisioned lines. In general, the card supports all different rates on the line side as long as the accumulated bandwidth does not exceed the total backplane allowed bandwidth.